Journal of Engineering Research
DOI
10.70259/engJER.2024.851864
Abstract
It is essential to boost thermoelectric generator performance because recent studies have revealed lower efficiency. Its leg dimensions and the thickness of the copper strip could be changed to achieve this. With its innovative approach of establishing the P-N legs' optimal dimensions while considering all interactions at lower operational heat fluxes, the present research aims to be fruitful for common applications. A comprehensive TEG model was created, utilizing a single objective optimization method. Key performance parameters, including voltage, hot side temperature, output power, and conversion efficiency, were evaluated through simulations and compared to conventional TEG systems. The findings showed that the cross-sectional area and leg length significantly in-fluence the performance parameters. In contrast, there is little change in the conducting plate's thickness. For instance, a P-N paired with a leg length of 4 mm produces 0.0001 W and 0.004 W, respectively, for two different heat fluxes of 5 kW/m2 and 25 kW/m2. Respectively, resulting in corresponding efficiencies of 1.21% and 6.03%. Utilizing a genetic algorithm, the optimum values for the leg cross-section, length, and conducting plate thickness were determined to be 1.355 mm2, 0.653 mm, and 3.998 mm, respectively. The suggested design maximizes TEG-generated volt-age, hot side temperature, power, and conventional efficiency by 257 %, 126 %, 316 %, and 257 %, respectively, over the traditional system at a 25 kW/m2 heat flux.
Recommended Citation
Harb, Abd El-Moneim A.; Elsayed, Khairy; Osman, Ahmed S.T.; and Abdo, Ahmed
(2024)
"Performance optimization of Bi2Te3 thermoelectric generator system under low operating heat fluxes,"
Journal of Engineering Research: Vol. 8:
Iss.
5, Article 13.
DOI: 10.70259/engJER.2024.851864
Available at:
https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss5/13